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Create Your Perfect Ring

1.

Setting

Sia - £1,320

Change
Sia
2.

Diamond

Choose
3.

Ring Size

Select

Sia - Cushion Diamond Band in 18k Yellow Gold

Setting
£1,320

Diamond
Choose

Total
£1,320

Diamond Shape: Cushion

Metal: 18k Yellow Gold

Ring Size: Select Size

Book Appointment

Order today and receive your custom made piece by 6 Jun 2026

  • Free UK Delivery
  • Lifetime Warranty
  • Free Resizing
  • Ethical Sourcing
  • Handcrafted in the UK
  • Insurance Valuation

Daring yet elegant, the Sia engagement ring is a unique play on the vibrant style of diamond band rings. Made in 18k yellow gold and lined with diamonds along its outer edges, the ring has a contemporary feel and delivers intense scintillation and sparkle that mirrors the beauty of the round diamond center stone. This intriguing ring is set with 0.25ct of diamond melee.

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Select a Diamond

Choose the Cushion cut diamond for your Diamond Band Engagement Ring or Change Shape

CVD 1.36 Diamond

1.36ct Cushion

£991

labs-cert-igi
Carat
1.36
Colour
E
Clarity
VS1
More Info
CVD 1.1 Diamond

1.10ct Cushion

£1,164

labs-cert-igi
Carat
1.10
Colour
E
Clarity
VVS2
More Info
HPHT 1.09 Diamond

1.09ct Cushion

£1,181

labs-cert-igi
Carat
1.09
Colour
D
Clarity
VS2
More Info
HPHT 1.02 Diamond

1.02ct Cushion

£1,183

labs-cert-igi
Carat
1.02
Colour
D
Clarity
VS1
More Info
HPHT 1.03 Diamond

1.03ct Cushion

£1,193

labs-cert-igi
Carat
1.03
Colour
D
Clarity
VS1
More Info
HPHT 1.07 Diamond

1.07ct Cushion

£1,235

labs-cert-igi
Carat
1.07
Colour
D
Clarity
VS1
More Info
HPHT 1.1 Diamond

1.10ct Cushion

£1,266

labs-cert-igi
Carat
1.10
Colour
E
Clarity
VS1
More Info
HPHT 1.24 Diamond

1.24ct Cushion

£1,325

labs-cert-igi
Carat
1.24
Colour
D
Clarity
VS2
More Info
HPHT 1.04 Diamond

1.04ct Cushion

£1,419

labs-cert-igi
Carat
1.04
Colour
D
Clarity
VVS2
More Info
HPHT 1.25 Diamond

1.25ct Cushion

£1,421

labs-cert-igi
Carat
1.25
Colour
D
Clarity
VS1
More Info
HPHT 1.05 Diamond

1.05ct Cushion

£1,432

labs-cert-igi
Carat
1.05
Colour
E
Clarity
VVS2
More Info
HPHT 1.28 Diamond

1.28ct Cushion

£1,452

labs-cert-igi
Carat
1.28
Colour
D
Clarity
VS1
More Info
HPHT 1.08 Diamond

1.08ct Cushion

£1,468

labs-cert-igi
Carat
1.08
Colour
D
Clarity
VVS2
More Info
HPHT 1.3 Diamond

1.30ct Cushion

£1,473

labs-cert-igi
Carat
1.30
Colour
D
Clarity
VS1
More Info
HPHT 1.09 Diamond

1.09ct Cushion

£1,481

labs-cert-igi
Carat
1.09
Colour
D
Clarity
VVS2
More Info
CVD 1.32 Diamond

1.32ct Cushion

£1,494

labs-cert-igi
Carat
1.32
Colour
E
Clarity
VS1
More Info
HPHT 1.25 Diamond

1.25ct Cushion

£1,679

labs-cert-igi
Carat
1.25
Colour
D
Clarity
VVS2
More Info
HPHT 1.26 Diamond

1.26ct Cushion

£1,692

labs-cert-igi
Carat
1.26
Colour
E
Clarity
VVS2
More Info
HPHT 1.3 Diamond

1.30ct Cushion

£1,741

labs-cert-igi
Carat
1.30
Colour
D
Clarity
VVS2
More Info
HPHT 1.3 Diamond

1.30ct Cushion

£1,741

labs-cert-igi
Carat
1.30
Colour
D
Clarity
VVS2
More Info

Buy With Confidence

We’re committed to quality, care, and your happiness throughout your journey with us.

  • Free UK Delivery
  • Lifetime Warranty
  • Free Resizing
  • Ethical Sourcing
  • Handcrafted in the UK
  • Insurance Valuation